"All hell broke loose," Valletta told 69 News. "The gun came out at my head. He was screaming at me. He had his hoodie pulled down and I couldn't see anything but his eyes."

The man allegedly demanded money and video shows Valletta handing over all his $11.

At that very moment, lights flash from behind. As luck would have it, a Berks County Sheriff's deputy was right behind the cab.

"I stood in the back to try and hear the conversation ahead of time so knew what I was getting myself into," Deputy Terry Ely said. "At that point, I heard the driver say, 'Just please don't shoot me.'"

Ely sprang to action, pulling out his own gun and telling the suspect to get out of the car and onto the ground.